<template>
  <div class="login_body">
    <div class="bg" />
    <div class="box">
      <div class="title">智慧园区-登录</div>
      <el-form ref="form" :rules="rules" :model="loginForm">
        <el-form-item label="账号" prop="username">
          <el-input v-model="loginForm.username" />
        </el-form-item>

        <el-form-item label="密码" prop="password">
          <el-input v-model="loginForm.password" show-password />
        </el-form-item>

        <el-form-item prop="remember">
          <el-checkbox v-model="remberMe">记住我</el-checkbox>
        </el-form-item>

        <el-form-item>
          <!-- el-button能够绑定click事件的原因：el-button内部实现了this.$emit('click') -->
          <el-button type="primary" class="login_btn" @click="handleLogin('form')">登录</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import { FORM_KEY } from '@/constants/KEY'
export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: '',
        password: ''
      },
      remberMe: true,
      rules: {
        username: [
          { required: true, message: '请输入账号', trigger: 'blur' },
          { min: 5, max: 11, message: '长度在6-11个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 11, message: '长度在6-11个字符之间', trigger: 'blur' }
        ],
      }
    }
  },
  created() {
    const loginData = localStorage.getItem(FORM_KEY);
    //先判断有没有存储用户信息
    if (loginData) {
      const { username, password } = JSON.parse(loginData);
      this.loginForm.username = username;
      this.loginForm.password = password;
    }
  },
  methods: {
    handleLogin(form) {
      this.$refs[form].validate((valid) => {
        if (valid) {
          this.$store.dispatch("user/loginAction", this.loginForm).then(() => {
            if (this.remberMe) {
              localStorage.setItem(FORM_KEY, JSON.stringify(this.loginForm))
            } else {
              localStorage.removeItem(FORM_KEY);
            }
            this.$message.success('登录成功');
            //实现哪个页面退出的，登录后继续跳转到对应页面
            if (this.$route.query.redirect) {
              this.$router.push(this.$route.query.redirect)
            } else {
              this.$router.push('/workbench');
            }

          }).catch((error) => {
            console.log(error);
            // this.$message.error(error.response.data.msg);
          })
        } else {
          alert('请填写账号密码');
        }
      })
    }
  }

}

</script>

<style scoped lang="scss">
.login_body {
  display: flex;
}

.bg {
  width: 60vw;
  height: 100vh;
  background: url('~@/assets/login-bg.svg') no-repeat;
  background-position: right top;
  background-size: cover;
}

.box {
  margin: 200px 10% 0;
  flex: 1;

  .title {
    padding-bottom: 76px;
    font-size: 26px;
    font-weight: 500;
    color: #1e2023;
  }

  ::v-deep() {
    .ant-form-item {
      display: flex;
      margin-bottom: 62px;
      flex-direction: column;
    }

    .ant-form-item-label label {
      font-size: 16px;
      color: #8b929d;
    }

    .ant-input,
    .ant-input-password {
      border-radius: 8px;
    }
  }
}

.login_btn {
  width: 100%;
}
</style>
